Subtract 80/50 from 9/18, Solve 9/18

Subtract 80/50 from 9/18

1^st number: 9/18, 2^nd number: 1 30/50

9/18 - 80/50 is -11/10.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
9/18 = 9 × 25/18 × 25 = 225/450
Likewise, for the 2nd fraction, since 50 × 9 = 450,
80/50 = 80 × 9/50 × 9 = 720/450
Subtract the two like fractions:
225/450 - 720/450 = 225 - 720/450 = -495/450
After reducing the fraction, the answer is -11/10

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